Khmer Script - Diacritics | Technology Trends

Diacritics	Name	Notes
ំ	nĭkkôhĕt (និគ្គហិត)	niggahita; nasalizes the inherent vowels and some of the dependent vowels, see anusvara, sometimes used to represent in Sanskrit loanwords
ះ	reăhmŭkh (រះមុខ)	"shining face"; adds final aspiration to dependent or inherent vowels, usually omitted, corresponds to the visarga diacritic, it maybe included as dependent vowel symbol
ៈ	yŭkôleăkpĭntŭ (យុគលពិន្ទុ)	yugalabindu ("pair of dots"); adds final glottalness to dependent or inherent vowels, usually omitted
៉	musĕkâtônd (មូសិកទន្ត)	mūsikadanta ("mouse teeth"); used to convert some o-series consonants to the a-series
៊	reisâpt (ត្រីសព្ទ)	trīsabda; used to convert some a-series consonants to the o-series
ុ	kbiĕh kraôm (ក្បៀសក្រោម)	also known as bŏkcheung (បុកជើង); used in place when the diacritics treisâpt and musĕkâtônd impede with superscript vowels
៌'	bântăk (បន្តក់)	used to shorten some vowels
៌	rôbat (របាទ) répheăk (រេផៈ)	rapāda, repha; behave similarly to the tôndâkhéat, corresponds to the Devanagari diacritic repha, however it lost its original function which was to represent a vocalic r
៍	tôndâkhéat (ទណ្ឌឃាដ)	daṇḍaghāta; used to render some letters as unpronounced
៎	kakâbat (កាកបាទ)	kākapāda ("crow's foot"); more a punctuation mark than a diacritic; used in writing to indicate the rising intonation of an exclamation or interjection; often placed on particles such as /na/, /nɑː/, /nɛː/, /vəːj/, and the feminine response /cah/
៏	âsda (អស្តា)	denotes stressed intonation in some single-consonant words
័	sanhyoŭk sannha (សំយោគសញ្ញា)	represents a short inherent vowel in Sanskrit and Pali words; usually omitted
៑	vĭréam (វិរាម)	a mostly obsolete diacritic, corresponds to the virāma
្	cheung (ជើង)	a.w. coeng; a sign developed for Unicode to input subscript consonants, appearance of this sign varies among fonts